From b750101eb236130cf056c675997decbac904cc49 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 17:35:18 +0200 Subject: Adding upstream version 252.22. Signed-off-by: Daniel Baumann --- src/shared/blockdev-util.h | 56 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 src/shared/blockdev-util.h (limited to 'src/shared/blockdev-util.h') diff --git a/src/shared/blockdev-util.h b/src/shared/blockdev-util.h new file mode 100644 index 0000000..b2c1410 --- /dev/null +++ b/src/shared/blockdev-util.h @@ -0,0 +1,56 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#pragma once + +#include + +#include "sd-device.h" + +#include "macro.h" +#include "stdio-util.h" +#include "string-util.h" + +#define SYS_BLOCK_PATH_MAX(suffix) \ + (STRLEN("/sys/dev/block/") + DECIMAL_STR_MAX(dev_t) + 1 + DECIMAL_STR_MAX(dev_t) + strlen_ptr(suffix)) +#define xsprintf_sys_block_path(buf, suffix, devno) \ + xsprintf(buf, "/sys/dev/block/%u:%u%s", major(devno), minor(devno), strempty(suffix)) + +typedef enum BlockDeviceLookupFlag { + BLOCK_DEVICE_LOOKUP_WHOLE_DISK = 1 << 0, /* whole block device, e.g. sda, nvme0n1, or loop0. */ + BLOCK_DEVICE_LOOKUP_BACKING = 1 << 1, /* fd may be regular file or directory on file system, in + * which case backing block device is determined. */ + BLOCK_DEVICE_LOOKUP_ORIGINATING = 1 << 2, /* Try to find the underlying layer device for stacked + * block device, e.g. LUKS-style DM. */ +} BlockDeviceLookupFlag; + +int block_device_new_from_fd(int fd, BlockDeviceLookupFlag flag, sd_device **ret); +int block_device_new_from_path(const char *path, BlockDeviceLookupFlag flag, sd_device **ret); + +int block_device_is_whole_disk(sd_device *dev); +int block_device_get_whole_disk(sd_device *dev, sd_device **ret); + +int block_get_whole_disk(dev_t d, dev_t *ret); +int block_get_originating(dev_t d, dev_t *ret); + +int get_block_device_fd(int fd, dev_t *ret); +int get_block_device(const char *path, dev_t *dev); + +int get_block_device_harder_fd(int fd, dev_t *dev); +int get_block_device_harder(const char *path, dev_t *dev); + +int lock_whole_block_device(dev_t devt, int operation); + +int blockdev_partscan_enabled(int fd); + +int fd_is_encrypted(int fd); +int path_is_encrypted(const char *path); + +int fd_get_whole_disk(int fd, bool backing, dev_t *ret); +int path_get_whole_disk(const char *path, bool backing, dev_t *ret); + +int block_device_add_partition(int fd, const char *name, int nr, uint64_t start, uint64_t size); +int block_device_remove_partition(int fd, const char *name, int nr); +int block_device_resize_partition(int fd, int nr, uint64_t start, uint64_t size); +int partition_enumerator_new(sd_device *dev, sd_device_enumerator **ret); +int block_device_remove_all_partitions(sd_device *dev, int fd); +int block_device_has_partitions(sd_device *dev); +int blockdev_reread_partition_table(sd_device *dev); -- cgit v1.2.3